ISSN 0914-4935

Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials,
Volume 30, Number 10(2) (2018)

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pp. 2343-2357
S&M1680
https://doi.org/10.18494/SAM.2018.1945
Published: October 25, 2018

Design Optimization of CMOS Control Circuit for Integrated Photovoltaic Power Transfer [PDF]

Takashi Tokuda, Takaaki Ishizu, Wuthibenjaphonchai Nattakarn, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Mohamad Sawan, and Jun Ohta

(Received March 29, 2018; Accepted September 18, 2018)

Keywords: CMOS, wireless, batteryless, photovoltaic power transfer, energy harvesting, implantable device, Internet of Things (IoT)

A CMOS control circuit for an integrated photovoltaic (PV) power transfer/harvesting platform is optimized. The proposed PV power transfer/harvesting platform is based on the concept of charging a small PV current in a capacitor and operating a target circuit intermittently. This architecture is suitable for various types of implantable or Internet of Things (IoT) devices. To realize the integration of PV cells on a CMOS chip, we need to improve the performance of the CMOS control circuit. We refined a self-powered voltage detector circuit in the CMOS control circuit to comply with small-current operation and improved the adjustability of the switching voltages. We describe a strategy and experimentally obtained results of the design optimization.

Corresponding author: Takashi Tokuda


Cite this article
Takashi Tokuda, Takaaki Ishizu, Wuthibenjaphonchai Nattakarn, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Mohamad Sawan, and Jun Ohta, Design Optimization of CMOS Control Circuit for Integrated Photovoltaic Power Transfer, Sens. Mater., Vol. 30, No. 10, 2018, p. 2343-2357.


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